Pilot's Operating Handbook
Section 3
Emergency procedures
EASA Approved
Edition 0 - October 31, 2013
Rev. 4
Page 3.12.26
ADC failure
Symptoms :
-
On PFD(s) : Comparator window
IAS NO COMP
and/or
ALT NO COMP
annunciation(s)
-
On PFD(s) : Reversionary sensor window
BOTH ON ADC1
or
BOTH ON ADC2
annunciation
Lost systems :
-
ADC1 or ADC2
Actions :
Autopilot is still operative.
1 -
ADC 1 and/or ADC 2 breaker
Check pushed
. . . . . . . . . . . . . . . . . . . . . . . . . . .
If
BOTH ON ADC1
or
BOTH ON ADC2
annunciation
is associated to
IAS NO COMP
and/or
ALT NO COMP
annunciation(s)
2 -
No action required.
End of procedure
■
If all annunciations
IAS NO COMP
,
ALT NO COMP
go off,
refer to following condition.
If
BOTH ON ADC1
or
BOTH ON ADC2
annunciation
not associated to
IAS NO COMP
and/or
ALT NO COMP
annunciation(s)
3 -
PFD1 and PFD2 SENSOR softkeys
Press
. . . . . . . . . . . . . . . . . . . . . . .
4 -
ADC1 on PFD1 and/or ADC2 on PFD2
Reset
. . . . . . . . . . . . . . . . . . . . .
5 -
BOTH ON ADC1
or
BOTH ON ADC2
annunciation
Check OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
End of procedure.
PIM - DO NOT USE FOR FLIGHT OPERATIONS